Define focal distance of a point?

Asked by Last Modified  

Follow 3
Answer

Please enter your answer

Physics Tutor

Focal length is the distance between the center of a convex lens or a concave mirror and the focal point of the lens or mirror the point where parallel rays of light meet, or converge.
Comments

Mathematics/Physics

Focal distance is the distance from a focal point of a lens or mirror to the corresponding principal plane.
Comments

Knowledge is Power

The distance of any point on the Hyperbola from the focus is called its focal diistance.
Comments

View 1 more Answers

Related Questions

Please suggest one of best book for for Geography.
NCERT 11th and 12th for good understanding
Profile Photo
Kumar Upendra Akshay
2 0
View Comments9
Hi friends, please post the solution for following problem. If, (root X) + Y = 11 X + (root Y) =7 Then X , Y = ?
If we use the proper method, the solution is very lengthy and also it involves polynomial to the power 4. However, if we use hit and trial method, it becomes very easy. sqrt x + y =11, sqrt y + x =7,...
Profile Photo
Bhaskar B.
Why it is easier to roll a stone up a sloping road than to lift it vertical upwards?
it is easier to roll up a stone on sloping road than lifting vertically because while lifting vertically the work is done against its weight "mg" but when it is rolled up a slope then there is a component...
Profile Photo
Aishwarya
0 0
View Comments8
In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit? A. 30% B. 70% C. 100% D. 250%
Let C.P.= Rs. 100. Then, Profit = Rs. 320, S.P. = Rs. 420. New C.P. = 125% of Rs. 100 = Rs. 125 New S.P. = Rs. 420. Profit = Rs. (420 - 125) = Rs. 295. Required percentage = 295 x 100 % = 1475 % = 70% (approximately). 420 21 ans=70%
Profile Photo
Srikanth
0 0
View Comments8

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

4 Things Every Tech Startup Needs to Know About The Coaching Industry
Knowledge on any subject is widely available to those who wish to learn. However, just gathering knowledge from other people doesn’t guarantee results in business. Results come from applying what...
Profile Photo

Escalation Clause in contract costing.
Meaning: In Fixed Price Contracts, the contract price is fixed and pre-determined. If there is an increase in prices of materials, rates of labour etc. during the period of execution of a contract,...
Profile Photo

Qualifications and Appointment of Supreme Court Judges in India
The Supreme court Judges in India are appointed by the President on the advice of his Council of Ministers and in consultation with such persons as he deems fit. In the appointment of the Chief Justice,...
D

Dissolution Of Partnership Firm - Questions
CHAPTER: 5 Q.1 Distinguish between dissolution of partnership and dissolution of partnership firm on the basis of continuation of business. Q.2 Why is Realisation Account prepared on dissolution of partnership...
Profile Photo

Vedic Mathematics for Multiplication of two 2-digited special numbers
In case of two 2-digited numbers whose digits in 10's place are same and sum of the digits in unit places is 10 For example:- 38 and 32 (10's place digits are equal and 8+2=10) 38×32 can be found...
N

Naimish K.

0 0
View Comments1

Recommended Articles

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition.  Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...

Read full article >

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Radhe Shyam is a highly skilled accounts and finance trainer with 8 years of experience in teaching. Accounting is challenging for many students and that’s where Radhe Shyam’s expertise comes into play. He helps his students not only in understanding the subject but also advises them on how to overcome the fear of accounts...

Read full article >

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you